6430385 has 8 divisors (see below), whose sum is σ = 8310120. Its totient is φ = 4748544.

The previous prime is 6430381. The next prime is 6430427. The reversal of 6430385 is 5830346.

It can be written as a sum of positive squares in 4 ways, for example, as 39601 + 6390784 = 199^2 + 2528^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6430385 - 2² = 6430381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6430381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49400 + ... + 49529.

It is an arithmetic number, because the mean of its divisors is an integer number (1038765).

Almost surely, 2^6430385 is an apocalyptic number.

6430385 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6430385 is a deficient number, since it is larger than the sum of its proper divisors (1879735).

6430385 is a wasteful number, since it uses less digits than its factorization.

6430385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98947.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 6430385 is about 2535.8203800743. The cubic root of 6430385 is about 185.9569118212.

The spelling of 6430385 in words is "six million, four hundred thirty thousand, three hundred eighty-five".